Primer

mcrandall · Post by **mcrandall** » Tue Jul 26, 2011 10:27 am

We had a discussion about paint failure a little bit ago where our friend Al from Kansas was going thru some bad troubles. In that thread, EE mentioned that he used the 1-2-3 primer with great success.

I would like to ask the rest of you your thoughts or experience with that. I suspect the "Marine" primer used for above the waterline is more hype than value.

Thanks for your thoughts!

Mark

EmergencyExit · Post by **EmergencyExit** » Tue Jul 26, 2011 12:31 pm

I had Googled some sites and gotten positive results on using it, but for the life of me I can't find them now..I'll look again tonight..

al the pal · Post by **al the pal** » Fri Jul 29, 2011 10:44 am

EmergencyExit · Post by **EmergencyExit** » Fri Jul 29, 2011 11:00 am

Ah. So it was latex, then barrier, then primer, then the 2-part epoxy...and what peeled off was everything above the leftover latex ? Compatibility of multiple paint layers can be tricky..

If you decide to go back with the 1 part this second time, something I learned painting the Cal 21 was not to use the random orbit sander between coats, even on a wet hull with very fine paper. The paint goes on sooo thin that you'll sand off most of what you rolled on! Hand sanding with wet/dry paper on a block was what worked best for me.

Something else that helped me was to keep the block of paper wet (as opposed to wetting an area of the hull) - that way if you see a spot of hull that isn't wet you know the block hasn't passed over it evenly yet. You can also feel the block start to drag when you need to rewet it..

38 special · Post by **38 special** » Sun Jul 31, 2011 4:11 am

I have a general question. Why paint the hull instead of haveing the gel-coat buffed out with some compund? Is it oxidized to badly or are you wanting a different color. I once painted a boat with Dupont imron car paint. Mixed the thiner to the proper viscosity and added the hardner then sprayed it on, worked like a charmed.

mcrandall · Post by **mcrandall** » Wed Aug 03, 2011 6:57 pm

Here's an interesting article concerning the use of house paint on the topsides: http://www.simplicityboats.com/latexcarnel.html

So I've been hunting around and have been very appprehensive about not using a boat paint, even though the costs are hard to swallow. Started to work a couple chandleries against each other. I basically was looking at Interlux and Pettit. Primer goes for about $110/gal. Checked online and here's what tipped the balance for me: http://www.iboats.com/Pettit-Easypoxy-A ... _id.259708

I'm going with the Eastpoxy, but you'll see there are some pretty reasonable prices here. Reasonable enough for me not to fret over house paint primers for now.